*{
    margin: 0;
    padding: 0;
}
#kuang{
    width: 100vw;
    height: 100vh;
    background-color: aqua;
    .tou_tu{
        width: 100vw;
        height: 20vh;
        background-color: burlywood;
        display: flex;
        justify-content: center;
        align-items:center
    }
    .shuru{
        width: 100vw;
        height: 20vh;
        display: flex;
        flex-direction: column;
        justify-content: space-around;
        align-items: center;
        #ipt{
            border: none;
            // border-bottom: 3px solid #eeeeee ;
            border-radius: 15px;
        }
    }
}